
#define  LED1ON    1
#define  LED1OFF   2
#define  LED2ON    3
#define  LED2OFF   4

#define  N  20

struct student
{
    int   number  ; //学号
    char  name[N] ; //保存姓名
    char  sex[N]  ; //male female
    int   age     ; //年龄
    float score   ; //成绩
}student_t;

